diff --git a/shared/nm-glib-aux/nm-shared-utils.c b/shared/nm-glib-aux/nm-shared-utils.c
index b2ec54709..33749d3a1 100644
--- a/shared/nm-glib-aux/nm-shared-utils.c
+++ b/shared/nm-glib-aux/nm-shared-utils.c
@@ -2878,7 +2878,7 @@ _nm_utils_user_data_unpack (gpointer user_data, int nargs, ...)
 	}
 	va_end (ap);
 
-	g_slice_free1 (((gsize) nargs) * sizeof (gconstpointer), user_data);
+	g_slice_free1 (((gsize) nargs) * sizeof (gconstpointer), data);
 }
 
 /*****************************************************************************/